I like her slide as it allows her to keep up the pressure. Especially if you end a combo with b1,2,1~slide. You can actually go into Tantrum quickly after slide, too, so if your combo has a bit of push back, you can slide~Tantrum and still land it. Thing is, I've yet to find a solid combo that requires this. You can do it in some, but it's not required as Tantrum already has good range.
You can start a combo with f2,3~slide...but I've yet to optimize a solid combo out of it yet. It crosses under and f2 is overhead, so it could be useful for positioning.